Hi, thanks for your interest in how we calculate an experience's ranking score. It's at the core of Rankers so I'm pleased you're curious.
The ranking score percentage is used to compare and sort experiences in ranking tables. It is not necessarily a direct measurement of the quality of a particular experience as rated by its customers. I've found it a useful tool to allow me to find the best experiences with confidence. But I've also found it important to read the customer reviews before making any final judgements!
We calculate an experience's ranking score using a multi-factor data model instead of a raw data average (mean). This model takes into account several important questions. For instance - is there a trusted body of reviews? What is the age of a review and is the review from a credible source?
Below you'll find details around some of the important factors that went into calculating the ranking score for Skyline Luge Rotorua.
If you have any questions or comments about our ranking score calculation please get in touch at info@rankers.co.nz. We don't believe this is perfect or complete so we're always interested in ways we might make improvements.
Skyline Luge Rotorua
Valid Reviews
145 Valid Reviews
The Skyline Luge Rotorua experience has a total of 146 reviews. There are 145 valid reviews that are included when calculating the ranking score and 1 invalid review that are excluded from the calculation. Reviews can be excluded only when a reviewer is not verified or after an investigation by our team determines the reviewer is not genuine.
Below is the distribution of ratings for the 145 valid reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 40 |
|
28% |
| 9/10 | 47 |
|
32% |
| 8/10 | 36 |
|
25% |
| 7/10 | 17 |
|
12% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.69% Average
The raw data average (mean) for all the Skyline Luge Rotorua valid reviews is 86.69% and is based on 145 valid reviews. This value is not used to calculate the ranking score and it only provided here as a comparison to the weighted average.
Face-to-Face Reviews
121 Face-to-Face Reviews
The Rankers team meets with travellers while they’re in New Zealand and conducts face-to-face surveys. These reviews, in our opinion, are the most trusted in the industry and represent a critical control sample. To our knowledge, we are the only travel review website in the world that has gone to this extent.
More about face-to-face reviews
Within the 145 valid reviews, the experience has 121 face-to-face reviews collected during interviews by our team.
Below is the distribution of ratings for the 121 face-to-face reviews:
| Rating | Count | Percentage | |
|---|---|---|---|
| 10/10 | 31 |
|
26% |
| 9/10 | 38 |
|
31% |
| 8/10 | 34 |
|
28% |
| 7/10 | 13 |
|
11% |
| 6/10 | 3 |
|
2% |
| 5/10 | 1 |
|
1% |
| 4/10 | 1 |
|
1% |
| 3/10 | 0 |
|
0% |
| 2/10 | 0 |
|
0% |
| 1/10 | 0 |
|
0% |
86.12% Average
The raw data average (mean) for all the Skyline Luge Rotorua face-to-face reviews is 86.12% and is based on 121 face-to-face reviews. This value is not used to calculate the ranking score and it only provided here for comparison purposes.
Weighted Average
87.14%
Rankers calculates a weighted mean as a base average on which we can improve. Individual review's ratings are given a weight based on several factors. The weight of a review determines the overall impact it'll have on the final weighted average.
Recent reviews have more weight as they are more relevant and reflect the experience as it currently operates. Over time reviews become less relevant and loose their impact on the ranking score.
Low rating reviews carry slightly less weight. This dampens the effect of very low ratings for every experience across the board. This is especially important when the experience has few reviews overall and a single negative rating can grossly mischaracterise an experience. Consistent poor reviews will still result in the experience receiving a comparitively low ranking score.
Credible sources provide reviews that can be trusted. If we have verified a reviewer is genuine via a face-to-face meeting then the review carries additional weight.
| Reviewer | Rating | Age | Relative Weight |
|---|---|---|---|
| Christian Paaske | 7/10 | 3337 days | 95% |
| Natasha Startup | 9/10 | 3369 days | 100% |
| Andy | 9/10 | 3374 days | 99% |
| Toby | 10/10 | 3380 days | 100% |
| Micha Kuster | 10/10 | 3438 days | 91% |
| Tim | 8/10 | 3454 days | 86% |
| Jendrik | 8/10 | 3454 days | 86% |
| Alice Frater | 7/10 | 3461 days | 78% |
| Jade Williams | 10/10 | 3474 days | 86% |
| Cora | 9/10 | 3715 days | 49% |
| Lauren Dinnage | 10/10 | 3723 days | 48% |
| Mike Munzenmaier | 9/10 | 3730 days | 46% |
| Matt Irwin | 8/10 | 3733 days | 45% |
| Annalies Beard | 8/10 | 3733 days | 45% |
| Laura Schafer | 9/10 | 3741 days | 45% |
| D Davey | 10/10 | 3750 days | 44% |
| Kirsten Gehrenbeck | 6/10 | 3752 days | 31% |
| Lucile Souday | 10/10 | 3761 days | 43% |
| Lisa Kalkert | 10/10 | 3762 days | 43% |
| David | 10/10 | 3762 days | 43% |
| Philip Piel | 9/10 | 3762 days | 42% |
| Miro | 6/10 | 3762 days | 30% |
| Chiara | 9/10 | 3762 days | 42% |
| Sabine Bergen | 9/10 | 3765 days | 41% |
| Annika Locker | 10/10 | 3768 days | 42% |
| Jess | 8/10 | 3799 days | 35% |
| Lilli Erni | 9/10 | 4432 days | 26% |
| Franz Birkefeld | 9/10 | 4433 days | 26% |
| Laina Black | 7/10 | 4453 days | 21% |
| Ricky White | 9/10 | 4453 days | 26% |
| Jennifer Garner | 9/10 | 4467 days | 26% |
| Philip Donachie | 10/10 | 4470 days | 27% |
| Klaus Petersen | 7/10 | 4472 days | 21% |
| Matthew Trezise | 10/10 | 4473 days | 27% |
| Lorraine Doyle | 10/10 | 4805 days | 27% |
| Lisa Blake | 9/10 | 4925 days | 26% |
| Jenben | 10/10 | 4939 days | 27% |
| David | 7/10 | 4939 days | 21% |
| Nikita Sue | 8/10 | 5206 days | 25% |
| Darren Ronchetti | 10/10 | 5209 days | 27% |
| Asha | 9/10 | 5244 days | 26% |
| Helen & Laurence | 9/10 | 5282 days | 26% |
| kirribilliangel | 10/10 | 5366 days | 27% |
| Dave van Bergen | 9/10 | 5514 days | 26% |
| Guult Ryan | 10/10 | 5536 days | 27% |
| Claire Colquhoun | 8/10 | 5537 days | 25% |
| Andy Johnson | 10/10 | 5541 days | 27% |
| Leanne Shepherd | 8/10 | 5542 days | 25% |
| Chris White | 10/10 | 5557 days | 27% |
| Jane & Regis | 7/10 | 5566 days | 21% |
| Invictus | 8/10 | 5731 days | 25% |
| craigy | 7/10 | 5762 days | 21% |
| Rob | 8/10 | 5832 days | 25% |
| David | 7/10 | 5848 days | 21% |
| Alzbeta Czech | 10/10 | 5929 days | 27% |
| Becky | 8/10 | 5936 days | 25% |
| Amer | 9/10 | 5940 days | 26% |
| Greg Gerritz | 8/10 | 5942 days | 25% |
| Chance McGuire | 10/10 | 5943 days | 27% |
| Hailey & Fin | 8/10 | 5955 days | 25% |
| pedawrds | 10/10 | 5994 days | 27% |
| thomash | 10/10 | 5999 days | 27% |
| asiacritics | 7/10 | 6005 days | 21% |
| Bue Verrept | 8/10 | 6012 days | 25% |
| canadianislandgirl | 7/10 | 6035 days | 21% |
| Ash Sturm | 9/10 | 6035 days | 26% |
| wileyman | 9/10 | 6066 days | 26% |
| clairet | 9/10 | 6114 days | 26% |
| ToryL | 9/10 | 6127 days | 26% |
| muriellef | 7/10 | 6131 days | 21% |
| katesh | 10/10 | 6204 days | 27% |
| caroldarren | 10/10 | 6249 days | 27% |
| Jake1 | 9/10 | 6251 days | 26% |
| HanT | 8/10 | 6258 days | 25% |
| Yvanna | 8/10 | 6268 days | 25% |
| EmmaL | 8/10 | 6282 days | 25% |
| AnthonyB1 | 8/10 | 6283 days | 25% |
| kiwibrit86 | 9/10 | 6292 days | 26% |
| Matt | 10/10 | 6298 days | 27% |
| SuenSwitzerland | 9/10 | 6308 days | 26% |
| Carolyn | 9/10 | 6311 days | 26% |
| Marcus | 8/10 | 6311 days | 25% |
| Kirsty | 10/10 | 6312 days | 27% |
| Fam | 9/10 | 6317 days | 26% |
| Hayley | 8/10 | 6323 days | 25% |
| Debbie Mossman | 9/10 | 6324 days | 26% |
| Alan | 8/10 | 6327 days | 25% |
| Claire | 10/10 | 6334 days | 27% |
| Spyfox | 10/10 | 6355 days | 27% |
| Sonja | 9/10 | 6362 days | 26% |
| Tim | 8/10 | 6369 days | 25% |
| Lorri S | 8/10 | 6373 days | 25% |
| lming60 | 10/10 | 6374 days | 27% |
| melissa | 10/10 | 6374 days | 27% |
| Vincent | 9/10 | 6379 days | 26% |
| Hanna | 5/10 | 6394 days | 8% |
| Henry | 8/10 | 6416 days | 25% |
| Laura | 9/10 | 6432 days | 26% |
| Dave | 9/10 | 6439 days | 26% |
| Anna | 8/10 | 6446 days | 25% |
| S D | 9/10 | 6463 days | 26% |
| Alex Paice | 9/10 | 6473 days | 26% |
| Nikki Gray | 9/10 | 6499 days | 26% |
| Kellie Teichmann | 10/10 | 6549 days | 27% |
| L1z4rd | 9/10 | 6568 days | 26% |
| Allie61 | 10/10 | 6614 days | 27% |
| Adam Richards | 9/10 | 6629 days | 26% |
| Nick | 9/10 | 6635 days | 26% |
| Andria Davis | 9/10 | 6642 days | 26% |
| Georgina Mulligan | 9/10 | 6642 days | 26% |
| catzmagic | 9/10 | 6643 days | 26% |
| Emily Houston | 7/10 | 6646 days | 21% |
| Nancy Dol | 8/10 | 6646 days | 25% |
| John Woodrow | 9/10 | 6650 days | 26% |
| Zara | 10/10 | 6658 days | 27% |
| Ed | 6/10 | 6658 days | 16% |
| Elle | 10/10 | 6658 days | 27% |
| Issy | 7/10 | 6658 days | 21% |
| Katharina | 10/10 | 6661 days | 27% |
| Juliet | 9/10 | 6662 days | 26% |
| paulonline | 10/10 | 6664 days | 27% |
| Marc Hertogs | 7/10 | 6665 days | 21% |
| Ash McNeil | 10/10 | 6665 days | 27% |
| Warren | 8/10 | 6689 days | 25% |
| Klaus | 9/10 | 6697 days | 26% |
| Ann Westmacott | 9/10 | 6723 days | 26% |
| Neil Cooke | 8/10 | 6731 days | 25% |
| Archie Murdoch | 8/10 | 6738 days | 25% |
| Orla | 8/10 | 6739 days | 25% |
| Andy Chapman | 8/10 | 6851 days | 25% |
| JanKovar | 7/10 | 6967 days | 21% |
| Magnus | 8/10 | 6979 days | 25% |
| Lorraine | 8/10 | 6985 days | 25% |
| Dan | 9/10 | 6990 days | 26% |
| Sarah | 8/10 | 6990 days | 25% |
| Richhouse | 8/10 | 6995 days | 25% |
| Emma Gareth | 9/10 | 7001 days | 26% |
| Karen Nellist | 10/10 | 7004 days | 27% |
| beesom | 9/10 | 7015 days | 26% |
| Janne | 7/10 | 7019 days | 21% |
| Frauke | 4/10 | 7021 days | 0% |
| Dave | 10/10 | 7026 days | 27% |
| RosalindBoyes | 7/10 | 7026 days | 21% |
| Hanna | 8/10 | 7027 days | 25% |
| LisaAllen | 10/10 | 7040 days | 27% |
Adjustments
Several adjustments to the weighted average are added to improve relevancy and credibility. These adjustments apply equally to all experiences that meet the criteria.
Sample Size Adjustment
No Adjustment
A reasonable number of reviews are necessary in order for the average to be credible and for an experience to take a prime position within the ranking tables. As such, experiences with only a few reviews have a moderated score. This does not mean that the experience or the reviews can't be trusted. The Skyline Luge Rotorua experience has plenty of reviews and does not meet the criteria for any adjustment.
Recent Reviews Adjustment
-2.89% Adjustment
There may be an adjustment if this experience hasn't received any reviews within the last 87 days. However the Skyline Luge Rotorua experience does not meet the criteria for any adjustment.
In addition, an experience's ranking score may be adjusted for each day there is no new ranking. After 1 day the adjustment comes into effect. The maximum number of days that can be adjusted for is 200 days. Due to the seasonal nature of many businesses, this adjustment is applied dynamically throughout the year.
The Skyline Luge Rotorua experience has been adjusted for 200 days. Adjustments are according to the following table.
| Days | Adjustment |
|---|---|
| … | … |
| 197 | -2.85% |
| 198 | -2.86% |
| 199 | -2.88% |
| 200 | -2.89% |
| 201 | -2.90% |
| 202 | -2.92% |
| 203 | -2.93% |
| … | … |
Balancing Adjustment
1.98% Adjustment
Every experience's review score is adjusted to balance out the disproportional number of negative reviews that are contributed.
You won't be surprised to learn that disgruntled customers are more likely to leave a review than happy ones. They are motivated to share their experience and warn others. We consider this a good thing and it's why reading the reviews is important. However we've learned it can misrepresent the experience in a more overall sense.
We apply a balancing adjustment to counteract this effect and ensure the ranking score is a more fair representation of the experience. This adjustment is applied equally to all experiences.
Final Ranking Score
86%
The final ranking score once any adjustments, ratings, and rounding has been applied. This value is recalculated each day and a short rolling average is applied. Therefore it may not be precisely accurate based on the other values presented.